De-sanding a digester

Abstract

Provided is a method and system for separating components of a solid and liquid mixture. In an embodiment, the method includes de-sanding a treatment system. Digesters, clarifiers, wastewater apparatuses, self-contained processing tanks, process tanks, and the like, accumulate sand and other undesired inorganic components that ultimately prevent filtering, cleaning, and processing of the solid and liquid mixtures therein. The mixture in the treatment system may initially include sand, water, and biosolids. The mixture may be routed into a pressurized tank to separate the inorganic solids and liquid components based on their density and buoyancy. A de-sanded mixture may then proceed through the remaining cleaning process.

1 . A system for de-sanding a treatment system comprising:
 at least one liquid, or slurry, holding device, wherein the at least one liquid, or slurry, holding device contains therein at least one mixture of water with at least one type of solid sand material and/or at least one type of biosolids;   at least one submersible pump, wherein the submersible pump is able to pump the mixture contained in the at least one liquid, or slurry, holding device;   at least one debris tank, operatively connected to the at least one submersible pump and the at least one liquid, or slurry, holding device via at least one hose; and   at least one decant hose that is operatively connected to both the at least one debris tank and the at least one at least one liquid, or slurry, holding device, wherein the at least one decant hose is designed to return a portion of the material from the at least one debris tank to the at least one liquid, or slurry, holding device,   wherein the system removes at least one of the sand or biosolids located within the mixture of the water with at least one type of solid sand material and/or at least one type of biosolids.   
     
     
         2 . The system of  claim 1 , wherein the system removes the sand from the mixture of water and sand, or the sand from the mixture of water, sand and biosolids, in the at least one liquid, or slurry, holding device. 
     
     
         3 . The system of  claim 1 , wherein the at least one debris tank is a pressurized debris tank. 
     
     
         4 . The system of  claim 1 , wherein the system removes at least one type of biosolids from the mixture of water and biosolids, or at least one type of biosolids from the mixture of water, sand and biosolids, in the at least one liquid, or slurry, holding device. 
     
     
         5 . The system of  claim 1 , wherein the system removes at least one type of biosolids and the sand from the mixture of water, sand and biosolids in the at least one liquid, or slurry, holding device. 
     
     
         6 . A method for de-sanding a treatment system comprising:
 supplying at least one liquid, or slurry, holding device, wherein the at least one liquid, or slurry, holding device contains therein at least one mixture of water with at least one type of solid sand material and/or at least one type of biosolids;   supplying at least one submersible pump, wherein the submersible pump is able to pump the mixture contained in the at least one liquid, or slurry, holding device;   supplying at least one debris tank, operatively connected to the at least one submersible pump and the at least one liquid, or slurry, holding device via at least one hose; and   supplying at least one decant hose that is operatively connected to both the at least one debris tank and the at least one at least one liquid, or slurry, holding device,   wherein the at least one decant hose returns a portion of the material from the at least one debris tank to the at least one liquid, or slurry, holding device, and   wherein the system removes at least one of the sand or biosolids located within the mixture of the water with at least one type of solid sand material and/or at least one type of biosolids.   
     
     
         7 . The method of  claim 6 , wherein the method removes the sand from the mixture of water and sand, or the sand from the mixture of water, sand and biosolids, in the at least one liquid, or slurry, holding device. 
     
     
         8 . The method of  claim 6 , wherein the at least one debris tank is a pressurized debris tank. 
     
     
         9 . The method of  claim 6 , wherein the method removes at least one type of biosolids from the mixture of water and biosolids, or at least one type of biosolids from the mixture of water, sand and biosolids, in the at least one liquid, or slurry, holding device. 
     
     
         10 . The method of  claim 6 , wherein the method removes at least one type of biosolids and the sand from the mixture of water, sand and biosolids in the at least one liquid, or slurry, holding device. 
     
     
         11 . A method for de-sanding a treatment system comprising:
 supplying at least one liquid, or slurry, holding device, wherein the at least one liquid, or slurry, holding device contains therein at least one mixture of water with at least one type of solid sand material and at least one type of biosolids;   supplying at least one submersible pump, wherein the submersible pump is able to pump the mixture contained in the at least one liquid, or slurry, holding device;   supplying at least one debris tank, operatively connected to the at least one submersible pump and the at least one liquid, or slurry, holding device via at least one hose; and   supplying at least one decant hose that is operatively connected to both the at least one debris tank and the at least one at least one liquid, or slurry, holding device,   wherein the at least one decant hose returns a portion of the at least one type of biosolids from the at least one debris tank to the at least one liquid, or slurry, holding device, and   wherein the system removes at least one of the sand located within the mixture of the water with at least one type of solid sand material and the at least one type of biosolids.   
     
     
         12 . The method of  claim 11 , wherein the method removes the sand from the mixture of water, sand and biosolids in the at least one liquid, or slurry, holding device. 
     
     
         13 . The method of  claim 11 , wherein the at least one debris tank is a pressurized debris tank.